2025tac

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Information

Transient

Name: AT2025tac
Right ascension: 0h05m58.19s
Declination: 0d45m53.45s
Discovery Date: Aug. 1, 2025, 10:41 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.029

Host

Name:
Right ascension: 0h05m58.09s
Declination: 0d45m53.47s
Redshift: None
Photometric Redshift: 0.196

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	7.13
Cutout download	processed	42.14
Global aperture construction	processed	2.8
Local aperture photometry	processed	6.49
Global aperture photometry	processed	5.74
Validate local photometry	no valid phot	0.02
Validate global photometry	processed	15.18
Host information	processed	0.15
Global host SED inference	processed	453.66
Local host SED inference	not processed	None
Transient information	processed	0.0
Transient MWEBV	processed	0.04
Host MWEBV	processed	0.06
Processing status	blocked	N/A	N/A

Cutout Download Report

2MASS_H: 2MASS_J: 2MASS_K: WISE_W1: WISE_W2: WISE_W3: WISE_W4: GALEX_NUV: GALEX_FUV: PanSTARRS_g: PanSTARRS_r: PanSTARRS_i: PanSTARRS_z: PanSTARRS_y: SDSS_i: SDSS_r: SDSS_u: SDSS_z: SDSS_g: DES_g: DES_r: DES_i: DES_z: DES_Y:

Aperture Photometry

Aperture details

RA, DEC (J2000) = 0h05m58.19s, 0d45m53.45s
semi major axis, semi minor axis (arcsec) = 0.62, 0.62
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys

Data not available

Aperture details

RA, DEC (J2000) = 0h05m58.07s, 0d45m53.76s
semi major axis, semi minor axis (arcsec) = 6.78, 4.85
angle (degrees, anti-clockwise from east) = -146.92

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	3.3	0.36	22.603	0.118	AB
GALEX_NUV	4.89	0.34	22.177	0.075	AB
SDSS_u	15.58	4.79	20.919	0.334	AB
SDSS_g	34.63	2.4	20.051	0.075	AB
DES_g	33.33	0.3	20.093	0.010	AB
PanSTARRS_g	38.72	1.81	19.930	0.051	AB
SDSS_r	64.92	3.39	19.369	0.057	AB
PanSTARRS_r	47.81	1.23	19.701	0.028	AB
DES_r	63.08	0.45	19.400	0.008	AB
SDSS_i	73.02	4.96	19.241	0.074	AB
PanSTARRS_i	79.33	1.85	19.151	0.025	AB
PanSTARRS_z	55.14	5.04	19.546	0.099	AB
SDSS_z	76.36	14.28	19.193	0.203	AB
DES_z	87.45	2.73	19.046	0.034	AB
PanSTARRS_y	107.14	12.34	18.825	0.125	AB
2MASS_J	197.43	127.77	17.267	0.703	Vega
2MASS_H	383.64	191.33	16.073	0.541	Vega
2MASS_K	317.55	202.5	15.808	0.692	Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Data not available

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.365	9.601	9.792
{\rm log}_{10}({\rm SFR})	0.584	0.834	1.069
{\rm log}_{10}({\rm sSFR})	-9.167	-8.760	-8.346
{\rm stellar\ age}	0.323	2.329	4.636

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.500	-0.040	0.131
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.346	0.008	0.126

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.365	0.559	0.776
\delta	-0.554	-0.299	-0.087
\tau_1/\tau_2	0.889	1.225	1.569
Q_{PAH}	0.641	1.904	4.263
U_{min}	2.900	7.991	15.270
{\rm log}_{10}(\gamma_e)\,	-3.267	-1.913	-0.793

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.709	-2.004	-0.990
{\rm log}_{10}(\tau_{AGN})\,	0.876	1.216	1.655

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.605	0.812	1.009
0.03-0.10 Gyr	0.519	0.842	1.119
0.10-0.32 Gyr	0.270	0.685	0.993
0.32-1.01 Gyr	-1.352	-0.115	0.424
1.01-3.21 Gyr	-2.341	-0.619	-0.057
3.21-10.22 Gyr	-2.702	-0.871	-0.229
10.22-11.35 Gyr	-2.907	-0.898	-0.099